Genus Paraphelliactis Carlgren, 1928

Diagnosis (after Carlgren 1949 and Li & Xu 2016; modifications in italics) Hormathiidae with well-developed pedal disc. Column divisible into scapus and scapulus, the former strongly tuberculated and provided with a thick cuticle. Sphincter mesogleal, alveolar. Tentacles arranged in five or more cycles, more than or almost equal to mesenteries at the limbus, with or without mesogleal thickenings on the aboral side. Longitudinal muscles of tentacles ectodermal, radial muscles of oral disc ectodermal or more or less mesogleal. Two well developed siphonoglyphs. Mesenteries hexamerously arranged in five cycles, usually six pairs perfect and sterile, last cycle incomplete or complete. Retractors of mesenteries diffuse and weak. Parietobasilar muscles weak. Acontia well developed. No cinclides. Cnidom: Robust and gracile spirocysts, basitrichs, and microbasic p -mastigophores.

Type species: Paraphelliactis spinosa Carlgren, 1928